Optimal model for the asymmetrical distribution of noise correlation
Cui Xia-rong · Journal of Optoelectronics·laser · 2010
The optimal model for the asymmetrical distribution of noise correlation is proposed using the logarithmic normal distribution.It is found that beta distribution,gamma distribution and logarithmic normal distribution can be used to describe the asymmetrical distribution of noise correlation within(0,1] by the theoretical analysis and experiments,and then curves of the actual asymmetrical distribution of noise correlation are simulated by using the three probability density functions respectively.It is explained that the best results can be achieved using the logarithmic normal distribution according to the comparison between the simulated and actual curves of asymmetrical distribution of noise correlation,and it is proved by the maximum entropy method.Experimental results show that this model can reduce the least false rate over 70% compared with the other models.